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Public international law

We represent governments, organizations and individuals in sensitive matters around the world. Our multilingual lawyers give strategic advice on everything from investment and environmental protection, to land and maritime boundaries disputes and human rights.

Our established team has advised on some of the highest profile and most complex arbitration matters globally and is highly regarded in the field.

We cover the full spectrum of international law work, ranging from advice on State-State disputes before the International Court of Justice (ICJ) and issues of international law that arise before national courts to acting as counsel for parties in Investor-State disputes administered by the International Centre for Settlement of Investment Disputes (ICSID).

Whether you’re looking for advice on international investment law, land and maritime boundary disputes, the law of the sea, sovereign and diplomatic immunity, international sanctions, trade law (including WTO rules), international environmental law, human rights disputes (including before U.N. committees), international humanitarian law, the law of international organisations or enforcement – we can help.
 

Experience advising both investors and States

We have an established investor-state arbitration practice with numerous investment treaty arbitration cases, representing both international investors and sovereign states.

Our dedicated team works with clients around the world to resolve investor-State disputes under all the major arbitration rules, as well as ad hoc arbitrations across a wide range of sectors including, but not limited to, energy, natural resources, infrastructure, manufacturing, technology, construction and finance.

We have an experienced practice advising Governments on drafting investment treaties and investment legislation, a rare focus in private practice in the field of public international law.

International support to suit your needs

Made up of more than 20 lawyers worldwide, our team is spread across London, New York, Milan, Geneva, Singapore, Hong Kong and the British Virgin Islands. Our members are fluent in numerous languages, including French, Spanish, Italian, Russian, Arabic, Chinese, Hindi and Turkish and are qualified in both common and civil law jurisdictions, with extensive experience working in international organisations and emerging markets. We act as strategic advisors, conducting our own oral advocacy in public international law and human rights matters. These key factors contribute to the strength of our practice.

We are able to advise a variety of clients, namely Governments, multinational corporations, international organisations, non-governmental organisations and individuals, in the context of sensitive disputes involving different regions of the world, including in the Middle East, Africa, Asia, CIS countries, Europe, Russia and Latin America.

An outstanding practice

Clients have praised our team’s ‘deep technical knowledge’ and ‘impressive ability to assess and navigate complex legal and factual situations’, whilst also acknowledging our ‘responsiveness and professionalism’ as being ‘of a very high order’ and appreciating our ‘excellent customer focus’.

Members of the public international law team have also been commended for blending ‘strategic thinking with excellent client management skills’ and are known for their ‘practical and creative strategies’.

Track record

Our team

Hussein Haeri

Hussein Haeri

Partner | London

Hussein Haeri

Partner | London

Litigation and arbitration

Emma Lindsay

Emma Lindsay

Partner | New York

Emma Lindsay

Partner | New York

Litigation and Arbitration

Sherlin Tung

Sherlin Tung

Partner | Hong Kong

Sherlin Tung

Partner | Hong Kong

Litigation and Arbitration

Shaun Leong

Shaun Leong

Partner, WITHERS KHATTARWONG* | Singapore

Shaun Leong

Partner, WITHERS KHATTARWONG* | Singapore

Litigation and Arbitration

Chenthil Kumarasingam

Chenthil Kumarasingam

Partner, WITHERS KHATTARWONG* | Singapore

Chenthil Kumarasingam

Partner, WITHERS KHATTARWONG* | Singapore

Litigation and Arbitration

Sir Geoffrey Cox KC

Sir Geoffrey Cox KC

Consultant Global Counsel | London

Sir Geoffrey Cox KC

Consultant Global Counsel | London

Litigation and Arbitration

Aniruddha Rajput

Aniruddha Rajput

Consultant, Public International Law and International Arbitration | London

Aniruddha Rajput

Consultant, Public International Law and International Arbitration | London

Litigation & Arbitration

Robert Kovacs

Robert Kovacs

Special Counsel | London

Robert Kovacs

Special Counsel | London

Litigation and Arbitration

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Government

Our leading lawyers are frequently called on by government bodies in different countries to offer a view on draft legislation, or advise on the likely consequences of new policies or regulation. Find Out More
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Public companies

Publicly traded companies face many challenges. As a full-service, truly international law firm we offer support with day-to-day operations as well as advice on exceptional situations. Find Out More

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